changing file date/time fails

MarcinW · Post by *MarcinW » 2012-08-10, 21:04 UTC

8.01 32-bit (not tested on 64-bit):

I found a bug when changing a file time on FAT32 (but not NTFS) partitions. When I try set time to xx:yy:zz, I get xx:yy:zz+1, when zz is uneven. For example:

10:20:01 -> 10:20:02
10:20:59 -> 10:21:00

It's probably some kind of TDateTime rounding problem.

Regards

umbra · Post by *umbra » 2012-08-10, 21:16 UTC

Hi, if I'm not mistaken, FAT32 has only a 2-seconds time resolution for a time of modification.

karlchen · Post by *karlchen » 2012-08-10, 21:46 UTC

umbra wrote:Hi, if I'm not mistaken, FAT32 has only a 2-seconds time resolution for a time of modification.

You are absolutely right, umbra.

Karl

umbra · Post by *umbra » 2012-08-10, 22:41 UTC

You are absolutely right, umbra.

Thanks. It's nice to be, at least occasionally, right.

MarcinW · Post by *MarcinW » 2012-08-10, 22:50 UTC

umbra, karlchen, you are right. "Create time" is encoded using 24 bits in FATxx entry, but "Last modified time" uses only 16 bits, with seconds divided by 2.

So I think this thread could be moved to general Total Commander forum. Thanks.

Post by *Hacker » 2012-08-11, 08:35 UTC

[mod]Moved to the English forum.

Hacker (Moderator)[/mod]